Greenshot 1.2.19 for Mac was available to download from the developer's website when we last checked. We cannot confirm if there is a free download of this app available. The program is included in Design & Photo Tools. Please check the Mac app with an antivirus before launch as it is downloaded from the developer's website, and we cannot ensure that it is safe. The actual developer of this Mac application is Thomas Braun.
From the developer:
Greenshot is a light-weight screenshot software tool that lets you create screenshots of a selected region, a window, or the entire full screen. It allows you to annotate, highlight, or obfuscate parts of the screenshot. You can export the screenshot in various ways: save to file, copy to clipboard, and attach to e-mail.
You may want to check out more software for Mac, such as ScreenRecord Studio, Screen Mimic or Sequence, which might be related to Greenshot.
Screen Capture